X^4-81 =
(x^2-9)(x^2+9) =
(x+3)(x-3)(x^2+9)
There are two real roots (at x=3,-3).
Limitation: They may be more expensive and time consuming than lab experiments. Limitation: There is no control over extraneous variables that might bias the results. This makes it difficult for another researcher to replicate the study in exactly the same way.
Answer:
max is 25 there is no min
Step-by-step explanation:
max is 25 because when you do the table the highest y value their is it is 25 the min they are the same so there is no absolute min
Answer:
2x = 2x
Step-by-step explanation:
2x + 6 = 3x + 6 - x
2x = 3x - x(cancel equal terms)
2x=2x
